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NB/T 11450-2023: Mining flameproof three-phase permanent magnet synchronous motorized pulley
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| NB/T 11450-2023 | English | 489 |
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Mining flameproof three-phase permanent magnet synchronous motorized pulley
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NB/T 11450-2023
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Basic data | Standard ID | NB/T 11450-2023 (NB/T11450-2023) | | Description (Translated English) | Mining flameproof three-phase permanent magnet synchronous motorized pulley | | Sector / Industry | Energy Industry Standard (Recommended) | | Classification of Chinese Standard | D93 | | Classification of International Standard | 53.040.20 | | Word Count Estimation | 22,291 | | Date of Issue | 2023-12-28 | | Date of Implementation | 2024-06-28 | | Issuing agency(ies) | National Energy Administration | NB/T 11450-2023: Mining flameproof three-phase permanent magnet synchronous motorized pulley---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
NB/T 11450-2023 English version. Mining flameproof three-phase permanent magnet synchronous motorized pulley
ICS 53.040.20
CCSD93
Energy Industry Standards of the People's Republic of China
Flameproof three-phase permanent magnet synchronous electric drum for mining
Released on 2023-12-28
2024-06-28 implementation
The National Energy Administration released
Table of Contents
Preface III
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Types, classifications and basic parameters 2
4.1 Explosion-proof type and explosion-proof mark 2
4.2 Product model and its meaning 2
4.3 Basic parameters 2
5 Technical Requirements 3
5.1 General Provisions 3
5.2 Environmental conditions for use 3
5.3 Appearance requirements 3
5.4 Roller flaw detection 4
5.5 Performance 4
5.6 Electrical performance 6
5.7 Explosion-proof performance 9
6 Test methods 9
6.1 Test power supply 9
6.2 Test Instruments 9
6.3 Appearance Requirements Inspection 9
6.4 Roller flaw detection 9
6.5 Drum coating 10
6.6 Roller static balance test 10
6.7 Running stability test 10
6.8 Determination of surface linear velocity deviation rate 10
6.9 Measurement of radial runout of the outer circle 10
6.10 Noise Test 10
6.11 Vibration strength test 10
6.12 Overall efficiency test 10
6.13 Cooling water pipe pressure test 10
6.14 Determination of insulation resistance 10
6.15 Pressure resistance test 10
6.16 Turn-to-turn impulse withstand voltage test 11
6.17 Three-phase current unbalance measurement 11
6.18 Determination of DC resistance of stator winding 11
6.19 Winding temperature rise test 11
6.20 Load characteristics test 11
6.21 Short-time overtorque test 11
6.22 Overspeed test 11
6.23 No-load back electromotive force measurement 11
6.24 Thermal protection element inspection 11
6.25 Cyclic damp heat test 11
6.26 Flameproof parameter inspection 11
6.27 Grounding device inspection 12
6.28 Electrical clearance and creepage distance 12
6.29 Enclosure protection test 12
6.30 Shell impact test 12
6.31 Clamping and sealing performance and mechanical strength test of cable entry device 12
6.32 Heat and cold resistance test of non-metallic materials such as sealing rings 12
6.33 Chemical resistance test 12
6.34 Insulation sleeve torsion test 12
6.35 Shell static pressure performance test 12
6.36 Shell pressure resistance and internal ignition non-explosion test 12
6.37 Flame ablation test 12
6.38 Internal ignition without explosion test under stress state 12
7 Inspection Rules 13
7.1 Inspection category 13
7.2 Factory Inspection 13
7.3 Type inspection 13
8 Marking, packaging, transportation and storage 14
8.1 Sign 14
8.2 Packaging 15
8.3 Transportation and storage 15
Foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents"
Drafting.
Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.
This document was proposed by the China Coal Industry Association.
This document is under the jurisdiction of the Coal Industry Coal Mine Special Equipment Standardization Technical Committee.
This document was drafted by. Shanghai Coal Science Testing Technology Co., Ltd., Jiangsu Jiaxuan Intelligent Industrial Technology Co., Ltd., Safety Standard National Mining
Product Safety Marking Center Co., Ltd., Hebei Qianshun Energy Saving Technology Co., Ltd., Handan Sida Technology Co., Ltd., Hebei Xinsida Motor
Co., Ltd. and Huainan Wantai Electronics Co., Ltd.
The main drafters of this document are. Zhang Bochao, Pan Shengfa, Zhang Yong, Chang Lin, Zhang Chunhui, Chen Sizhong, Li Yaoyao, Fu Lin, Li Feng, Cao Dayuan, Zhu Zejun,
Chen Huijun, Liu Yang, Song Zhansong, Xi Lifeng, Li Bin, Cui Haibin, Li Gen, Ni Rui, Yu Hailong, and Hong Meijuan.
Flameproof three-phase permanent magnet synchronous electric drum for mining
1 Scope
This document specifies the types, classifications and basic parameters of flameproof three-phase permanent magnet synchronous electric drums for mining (hereinafter referred to as permanent magnet electric drums).
Numbers, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage, etc.
This document is applicable to flameproof permanent magnet electric rollers for belt conveyors in coal mines or non-coal mines, flameproof permanent magnet electric rollers for belt conveyors in other workplaces,
The explosion-type permanent magnet electric roller shall be implemented for reference.
2 Normative references
The contents of the following documents constitute the essential clauses of this document through normative references in this document.
For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to
This document.
GB/T 191 Pictorial markings for packaging, storage and transportation
GB/T 755-2019 Ratings and performance of rotating electrical machines
GB/T 2423.4 Environmental testing for electric and electronic products Part 2.Test method Test Db. Cyclic damp heat (12h 12h cycle
ring)
GB/T 3836.1-2021 Explosive atmospheres Part 1.General requirements for equipment
GB/T 3836.2-2021 Explosive atmospheres Part 2.Equipment protected by flameproof enclosure "d"
GB/T 3836.3-2021 Explosive atmospheres Part 3.Equipment protected by increased safety "e"
GB/T 4942 Protection degree of rotating electrical machine integral structure (IP code) Classification
GB/T 10069.1-2006 Measurement methods and limits for noise from rotating electrical machines Part 1.Measurement methods for noise from rotating electrical machines
GB/T 10111 Generation of random numbers and their application in product quality sampling inspection
GB/T 10595-2017 Belt Conveyor
GB/T 13560 Sintered NdFeB Permanent Magnet Materials
GB/T 22669-2008 Test methods for three-phase permanent magnet synchronous motors
GB/T 22714 AC low voltage motor winding turn-to-turn insulation test specification
GB/T 22719.1 Interturn insulation of loose-fitting windings of AC low-voltage motors Part 1.Test methods
GB/T 34491 Surface coating of sintered NdFeB
AQ1043 Mining Product Safety Signs and Labels
JB/T 7330-2018 Electric drum
MT/T 962-2019 Coatings for belt conveyor pulleys in coal mines
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
Permanent magnet synchronous motorized pulley
The utility model relates to a driving roller for a synchronous outer rotor belt conveyor, in which the stator adopts a distributed AC winding and the rotor uses a permanent magnet material to establish an excitation magnetic field.
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